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65 283 owners: please help!

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  • wagonairedriver
    replied
    Well, I'm just impatient, I guess. I went out and drove the Cruiser and did the ring-seating procedure (in the country, so I wouldn't get jailed for fogging out the city of Boise), and the thing completely stopped smoking. No water usage at all, and no more blue or white smoke/steam. The rebuild must be okay, it runs so smooth now, that you can't feel it at a stoplight. Thanks for all your input.
    Kelly

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  • fmarshall
    replied
    A can of KW Block Sealer will turn off the smoke, if it is coming from water through some passage where it shouldn't be.

    Follow the directions on the can and done.

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  • wagonairedriver
    replied
    Brian, good luck on your transplant! What did you put in, and did you have any compatibility issues? I may yet be using a different engine.I never really thought it was oil, and there's no milky look to the trans fluid. I really believe it's water, so I guess a pressure test is in order. I've got a friend who can get me a 350 horse 350 for about a grand... this has become quite the saga!
    thanks for your response

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  • chocolate turkey
    replied
    Doesn't sound like an oil leak. Do a pressure test on the cooling system, check the trans fluid and see if it is milky, which would be the result of coolant in there. (radiator cooler leak).
    I've just put a new V-8 chevybaker motor in my 66 Daytona and will be firing it up shortly. Hope it runs well, they aren't fun to wedge in the Stude body!

    Brian K. Curtis

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  • wagonairedriver
    replied
    Okay, thanks everybody for your input. Let me address those issues (if I can remember them all)... No vacuum modulator, though the trans does have coolant lines which route through the bottom tank of the radiator. When you bring up valve seals, are you saying it might be sucking oil down the guides? Redone heads, new perfect circle seals, and the smoke/steam is definitely white, not blue at all, and doesn't smell like oil. Haven't had it back together long enough to know if it is drinking coolant for sure. Will a cylinder leakdown test tell me about water issues? What about unhooking one spark plug wire at a time and seeing if the steam/smoke stops? Oh, also have changed the intake manifold, and checked it for cracks.Hmmmm... Well thanks anyway, I'll check out things more thoroughly. Thank you all
    Kelly

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  • gordr
    replied
    A '65 Flightomatic has no modulator; have one in the barn. But, IIRC, all '65 and '66 V8 cars used a water-cooled Flightomatic.

    Of course, some prior owner of the car could have pulled the Flightomatic and dropped in a TH-350, which does use a modulator.

    And burning ATF does lay down a smokescreen.

    If the car is burning coolant, the exhaust should have a distinctive sweet odor, and the loss of coolant should become obvious.

    If it does turn out to be valve guide seals, it easy to install a set of Studebaker V8 valve seals into the Chevy motor. I did this on a V8 Monza I had, and it made a dramatic improvement.

    Gord Richmond, within Weasel range of the Alberta Badlands

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  • N8N
    replied
    the water cooling was used only on the Powershift and Heavy Duty Flightomatic, but it was certainly available at least as early as 1957. Now that I think about it I seem to recall being told that the truck transmissions used a vacuum modulator, and also later FMXs had a modulator, so it is possible that the 65-66 trannies also had a modulator as well. I just don't know, but it's worth crawling under and taking a look. If it's idling and smoking, and you disconnect the vacuum hose and the smoke stops, that's your problem.

    nate



    --
    55 Commander Starlight
    http://members.cox.net/njnagel

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  • bob40
    replied
    I will offer the mea culpa that never having owned,driven,dare I say study those year Studes I was basing my suggestion on the Chev A/T

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  • Scott
    replied
    I have a 65 with the 283. The automatic is not exactly the same as the 1964. The 1965-66 cars have coolant lines from the transmission to the radiator. My 64 Daytona's automatic certainly had nothing like that.

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  • dictator27
    replied
    Are you absolutely sure it is steam? Is the coolant level going down? I'm with Bob40. Pull the vacuum line off the trans modulator and see if it is wet inside.

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  • N8N
    replied
    I agree with bob40 BUT... doesn't a '65 use the same B-W trans as a '64, therefore no modulator?

    If there *is* one that would certainly account for the smoke, my dad had one go on his old pickup and it laid down a nice screen.

    nate

    --
    55 Commander Starlight
    http://members.cox.net/njnagel

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  • bob40
    replied
    If it is a automatic I had issues with a the modulator valve on those vintage transmissions.If they developed a leak trans fluid could get sucked up into the manifold via a vacuum line and white smoke came out the tailpipes.The valve is on the side of the case,big round cover,IIRC.All mine ever needed was a new gasket.

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  • 1956 Hawk
    replied
    Just one other thought. Water can get into the intake manifold on a Chevy as it has water passages that flow through it. You might check the intake for cracks, or check the intake gaskets.
    David


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  • Guido
    replied
    Are you losing coolant? In order to have steam you need to have a source of moisture. When you tore down the engine was there any sign of leakage around the head gaskets?


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  • ROADRACELARK
    replied
    Sounds like a cylinder leak-down test is in order. This not only tells you what the problem is, but where it's coming from. Much more informative than just a compression test....although it to is helpfull. These test kits are available through many sources, NAPA, Jegs Performance, Summit Racing, even Harbor Freight. Hope this helps.

    Dan Miller
    Atlanta, GA

    [img=left]http://static.flickr.com/57/228744729_7aff5f0118_m.jpg[/img=left]
    Road Racers turn left AND right.

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